Cloning is a transliteration of the English word clone. The clone is derived from the Greek klone. The original meaning refers to seedlings or twigs. The plants are cultivated by asexual reproduction or vegetative propagation, such as rod insertion and grafting.
Today, cloning refers to the asexual reproduction of organisms by somatic cells, and the population of identical progeny individuals formed by asexual reproduction. Cloning can also be understood as copying, copying, or producing the same replica from the prototype. Its appearance and genetics are identical to the prototype.
The artificially isolated and modified gene is introduced into the genome of an organism, and the hereditary modification of the trait of the organism is caused by the expression of the introduced gene. This technique is called transgenic technology. People often say that “genetic engineering”, “genetic engineering”, “genetic transformation” are synonymous with genetic modification. Organisms modified by transgenic techniques are often referred to in the media as “Genetically Modified Organisms” (GMOs).